Moose1am,
first of all welcome to the forum!
If you want to do recordings, you have to be in advanced user mode. Choose this by going to the set up tab and scroll down to "User Mode". Set this to "Advanced".
Next you go to the recording/snapshot screen and then press menu. From the dropdown menu which will show up you choose "Start recording" by scrolling down to it and then use the right cursor to start it.
You can go back to any screen while recording. A message icon in the middle of the screens saying "Record" will show and remind you that the recording is in process. The only thing you cannot do is making a snapshot while the recording is running (you can do this later when you view the recordings with HumViewer or YellowFin on your PC).
If you want to stop the recording, you just press the menu button again in any view and the scroll down to "Stop Recording" and use the right cursor to stop it. Easy as this.
The recordings and snapshot will be recorded on your SD card, so there is no need to export them like the Nav Data. Keep the recordings at a max. length of around 30 minutes. This will make it easier to handle them later in HumViewer / YellowFin.
Good luck and regards from Germany
Harry